Of course, overreliance on them can cripple the vocabulary and impede meaning, but dropping the occasional F-bomb can be an immensely liberating and expressive gesture, when used judiciously. Context is key.

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(Friday. INT: apartment)

(EB and JH are playing RPS Chess)
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(EB makes a move)
JH: Tsk, you sure you want to do that?
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(EB scrutinizes board, hand still on the piece.)
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EB (glaring): It would appear that the injunction against you fucking me does not preclude you fucking WITH me.
JH: An important preposition, yes.